Optical device integrated with polarization coherent beam splitting

Abstract

The invention provides an optical device integrated with polarization coherent beam splitting. The following devices are arranged in a packaging shell, wherein a first input single-fiber collimator, apolarizing film, a depolarization beam splitter prism, a second polarization beam splitter and a second output double-fiber collimator are sequentially arranged along a first free space optical path,a second input single-fiber collimator, a depolarization beam splitter prism, a first polarization beam splitter and a first output double-fiber collimator are sequentially arranged along a second free space optical path, and the first free space optical path is perpendicular to the second free space optical path. According to the scheme, free space optical paths are adopted for transmission, andthe devices are all integrated on the packaging shell, so that the optical fiber processing difficulty is reduced, the optical fiber management difficulty is reduced, the size of the module is reduced, the cost is effectively reduced, and more stable optical performance is obtained.

Description

Technical field [0001] The invention relates to the field of optical devices, in particular to an optical device integrating polarization coherent beam splitting. Background technique [0002] In the prior art, in order to achieve polarization input, superposition interference, and re-splitting output, polarizers, couplers, polarization beam splitters and other devices are usually used, and they are connected by fusion splicing fibers. However, such a design will lead to polarization difficulties. Management, the entire module is large in size, high in cost, and performance is easily affected by vibration, temperature, etc. Summary of the invention [0003] The object of the present invention is to provide an optical device with integrated polarization coherent beam splitting function. [0004] In order to achieve the objective of the present invention, the present invention provides an optical device integrated with polarization coherent beam splitting, including a package housing...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, polarizers, couplers, polarization beam splitters and other devices are usually used to realize polarization input, superposition interference, and beam splitting output, and are connected by fusion splicing optical fibers. However, such a design will make polarization difficult. Management, the entire module is bulky, high cost, and its performance is easily disturbed by vibration, temperature, etc.

Images